Pendleton climate — normals and trends
Pendleton (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 11.1 °C and it receives 475 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (23.1 °C on average) and the coldest is January (0.8 °C). Rainfall peaks in December.
Pendleton averages 79 frost days, 44 hot days (≥ 30 °C) and 100 rainy days per year.
Pendleton has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 86 to 72 per year over the period.
The hottest day of the period reached 44.6 °C (on 29 June 2021) and the coldest -28.1 °C (on 31 January 1950).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
PendletonOregon
- coords
- 45.67°, -118.79°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.1°C
Average daily high
16.7°C
Average daily low
5.7°C
Annual rainfall
475mm
Sunshine / day
10.0h
Mean relative humidity
59%
Average peak wind
15.3km/h
Seasonal range
22.3°C
Frost days (< 0 °C)
79 d/yr
Hot days (≥ 30 °C)
44 d/yr
Rainy days (≥ 1 mm)
100 d/yr
Annual snowfall
47.2 cm
Average feels-like high
14.1 °C
Average feels-like low
2.5 °C
Average peak gust
33.5 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
15.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.27 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
44.6 °C
29 June 2021
Coldest day
-28.1 °C
31 January 1950
Wettest day
34 mm
18 November 1996
Windiest day
52.8 km/h
8 January 1990
Strongest gust
100.8 km/h
6 February 1999
Hottest feels-like
44.9 °C
29 June 2021
Coldest feels-like
-33.6 °C
31 January 1950
Snowiest day
16.0 cm
24 February 1994
Sunniest day
15.5 h
18 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 4.8 °C | +0.6 °C | 52 mm | -11 mm |
| Feb | 5.0 °C | -2.7 °C | 91 mm | +42 mm |
| Mar | 13.7 °C | +1.9 °C | 63 mm | +8 mm |
| Apr | 17.6 °C | +1.7 °C | 21 mm | -23 mm |
| May | 21.8 °C | +1.0 °C | 16 mm | -22 mm |
| Jun | 27.8 °C | +2.7 °C | 2 mm | -22 mm |
| Jul | 31.9 °C | +1.5 °C | 4 mm | -2 mm |
| Aug | 31.0 °C | +1.6 °C | 9 mm | -1 mm |
| Sep | 28.0 °C | +3.6 °C | 12 mm | -7 mm |
| Oct | 16.5 °C | -0.5 °C | 38 mm | -1 mm |
| Nov | 11.1 °C | +2.0 °C | 47 mm | -16 mm |
| Dec | 10.1 °C | +5.2 °C | 100 mm | +34 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Pendleton?
Pendleton has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 11.1 °C and it receives 475 mm of precipitation per year.
What is the hottest day ever recorded in Pendleton?
The hottest day measured in Pendleton between 1940 and 2025 was 29 June 2021, reaching 44.6 °C.
What is the coldest day in Pendleton?
The coldest day measured in Pendleton between 1940 and 2025 was 31 January 1950, at -28.1 °C.
Does it snow in Pendleton?
Yes. Pendleton gets on average 47.2 cm of snow per year and has around 79 frost days.
Has the climate of Pendleton warmed?
Yes: Pendleton warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pendleton?
The wettest day measured in Pendleton between 1940 and 2025 was 18 November 1996, with 34 mm of rain in 24 hours.
What was the windiest day in Pendleton?
The windiest day measured in Pendleton between 1940 and 2025 was 8 January 1990, with winds reaching 52.8 km/h.
What is the warmest month in Pendleton?
The warmest month in Pendleton is July (23.1 °C on average); the coldest is January (0.8 °C).
How much does it rain in Pendleton?
Pendleton receives on average 475 mm of precipitation per year, spread over about 100 rainy days.
Is it sunny in Pendleton?
Pendleton gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
What is the biggest single-day snowfall in Pendleton?
The heaviest 24-hour snowfall measured in Pendleton between 1940 and 2025 was 24 February 1994, with 16.0 cm.
Are there tropical nights in Pendleton?
Yes: Pendleton has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pendleton?
In Pendleton, between 1940 and 2025, the highest apparent temperature reached 44.9 °C on 29 June 2021, and the lowest was -33.6 °C on 31 January 1950.
Compare Pendleton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Pendleton